package cn.kaguyaever.service;

import cn.kaguyaever.entity.Judge;
import cn.kaguyaever.entity.User;

public interface UserService {
    //注册
    public void registerUser(User user);
    //登录
    public User login(User user);
    //检查用户名是否可用
    public boolean existsUsername(String username);

    public void changePassword(String password,Integer id);
}
